Jambs bigby



(No Model.)

J. RIGBY.

Oar Wheel.

No. 232,849. Patented Oct 5,1880.

Fig.1.

WITNEBSEEI INVENTOR! W/JM; UAMES RIGBY,

ATTYSn UNITED STATES PATENT OFFICE.

JAMES RIGBY, OF MONTREAL, QUEBEC, CANADA.

CAR-WHEEL.

SPECIFICATION forming part of Letters Patent No. 232,849, dated October 5, 1880.

Application filed March 27, 1880.

To all whom it may concern:

Be it known that I, JAMES RIGBY, a citizen of the United States, but residingin Montreal, in the Province of Quebec and Dominion of Canada, have invented a new and Improved Vulcanized-Fiber-Tire Oar-Wheel; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being bad to the accompanying drawings, and to the letters of reference marked thereon.

This invention is an improvement upon the car-wheel described and shown in my Patent No. 218,453, August 12,1879; and it consists, mainly, first, in the combination, with the body portion and a tire portion made in sections, of a series of bolts for uniting the tire-sections to the body portion; and, second, in the combination, with the tire made in sections,ot' metal rings made entire, as will be fully described hereinafter.

In the drawings, Figure 1 represents a side elevation of my improved wheel, with a portion of the clamping-plate broken away to show the construction of the interior. Fig. 2 represents a central vertical elevation of the same 5 Fig. 3, a partial plan view of the fiber ring; and

'Fig. 4, a modified form of tire, in which steel rings alternate with the fiber rings.

To enable others skilled in the art to make and use my invention, I will now proceed to describe fully its construction and manner of operation.

A, Figs. 1 and 2, represents the body portion, constructed generally of any proper form and suitable material.

B, Figs. 2 and 3, represents a vulcanizedfibcr ring, which is composed of any proper number of separate sections 1), as shown.

0, Figs. 1 and 2, represents a clamping ring or plate, and D D bolts,by means of which the body portion, the tire-sections, and the clampin g-ring are all securely united to form a solid wheel.

E E, Fig. 4, represent metal rings, prefer ably steel,made in one piece, which may be arranged alternately with the fiber rings, made in sections, upon the bearing portion of the wheel-body for the purpose of securing the fiber sections more perfectly. The tire por- (No model.)

tion, when placed upon the body portion of the wheel, slightly exceeds in width the bearingface of the body portion, in order that proper space may be afforded for the compression of the tire-sections by the action of the bolts.

F, Fig. 4, represents a vulcanized fiber sleeve,which may be employed,if desired, for the purpose of furnishing a bearing for the fiber tire.

Some of the advantages of the described construction are as follows: The tire being made in sections, instead of in one piece, the fiber of which it is composed may be outwithout excessive waste, and hence the cost of the same is materially reduced. By means of the series of bolts the ring-sections are strongly secured to the body portion. By means of the intermediate metal rings the fiber sections are more perfectly held, the friction of the latter, under the great pressure resulting from the action of the bolts, serving to bind the parts into a single solid structure. By means of fiber sleeve F the metal rings are separated from the metal hub, and hence no ringing sound will be produced by the contact of the rings with the rail.

This improvement relates exclusively to wheels having a tire composed of vulcanized fiber, and it differs from my former patent, before referred to, principally in having the sections of the tire secured by bolts instead of by overhanging projections.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a car-wheel having a vulcanized-fiber tire, the combination of the body portion A, the fiber tire'rings 13, made in sections 1), and the securing-bolts D, as described.

2. In combination with the body portion, the fiber tire-rings, made in sections, the intermediate metal rings, and the securingbolts, as described.

This specification signed and witnessed this 27th day of March, 1880.

JAMES RIGBY.

Witnesses H. W. BEADLE, ALBERT Z. BEATDLE. 

